Brun is a werewolf bear with a yellow tag of potential danger. Elsa is an upper-class girl, a music academy student. They would never have met, much less lived together, but she was initiated by a vampire, and her whole prosperous life went downhill. Brun needs a personal assistant, Elsa - one who will not be afraid of her. Brun wants to find his father's killer, Elsa - just to live another winter as a man. This winter may be the last for both of them, but they will spend it together.